EA033390B1 - Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process - Google Patents

Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process

Info

Publication number
EA033390B1
EA033390B1 EA201692121A EA201692121A EA033390B1 EA 033390 B1 EA033390 B1 EA 033390B1 EA 201692121 A EA201692121 A EA 201692121A EA 201692121 A EA201692121 A EA 201692121A EA 033390 B1 EA033390 B1 EA 033390B1
Authority
EA
Eurasian Patent Office
Prior art keywords
hot
formulations
scale
steel
dip galvanization
Prior art date
Application number
EA201692121A
Other languages
Russian (ru)
Other versions
EA201692121A1 (en
Inventor
Reuben Schapiro
Vladimir Boiko
Lev Shapiro
Original Assignee
Tal Or Ecology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tal Or Ecology Ltd filed Critical Tal Or Ecology Ltd
Publication of EA201692121A1 publication Critical patent/EA201692121A1/en
Publication of EA033390B1 publication Critical patent/EA033390B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/08—Tin or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/083—Iron or steel solutions containing H3PO4

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Coating With Molten Metal (AREA)

Abstract

The present invention provides a cost-effective hot-dip galvanization process for ferrous metals, which is regardful to the environment and to the health of the personnel.
EA201692121A 2014-04-22 2015-04-15 Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process EA033390B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461982384P 2014-04-22 2014-04-22
PCT/IL2015/050405 WO2015162604A1 (en) 2014-04-22 2015-04-15 Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process

Publications (2)

Publication Number Publication Date
EA201692121A1 EA201692121A1 (en) 2017-06-30
EA033390B1 true EA033390B1 (en) 2019-10-31

Family

ID=54331823

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201692121A EA033390B1 (en) 2014-04-22 2015-04-15 Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process

Country Status (8)

Country Link
US (1) US9752238B2 (en)
EP (1) EP3134559A4 (en)
CN (1) CN106460137B (en)
AU (1) AU2015249410B2 (en)
EA (1) EA033390B1 (en)
IL (1) IL248247A (en)
SG (1) SG11201608472YA (en)
WO (1) WO2015162604A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190003789A1 (en) * 2015-12-23 2019-01-03 Basf Se Heat exchanger for heating gas and use of the heat exchanger
CN107475759B (en) * 2017-08-23 2019-05-03 江苏国电新能源装备有限公司 A kind of zincincation of acid suppression mist
CN111455297A (en) * 2020-04-16 2020-07-28 高邮成鑫金属制造有限公司 Hot galvanizing rinsing pool with automatic circulation function
CN112941449B (en) * 2021-02-03 2022-03-25 徐州瑞马智能技术有限公司 High-strength low-relaxation additive for hot galvanizing
CN114921741B (en) * 2022-05-26 2023-11-10 中电建武汉铁塔有限公司 Hot galvanizing process
CN115354255B (en) * 2022-07-12 2024-02-02 江苏甬金金属科技有限公司 Stainless steel strip with hot-dip zinc-aluminum alloy coating and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255407A (en) * 1978-12-07 1981-03-10 Oy W. Rosenlaw Ab Method for the regeneration of pickling acids
WO2001049901A1 (en) * 2000-01-05 2001-07-12 United States Filter Corporation Regenerating spent pickling liquor
WO2009075710A1 (en) * 2007-12-11 2009-06-18 Macdermid, Incorporated Acid recycle process with iron removal
US8603420B2 (en) * 2009-09-10 2013-12-10 Green Future Ltd. Galvanic waste sludge treatment and manufacturing of nano-sized iron oxides

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
US1279331A (en) 1918-05-11 1918-09-17 James H Gravell Pickling iron and steel.
US1992045A (en) 1932-07-01 1935-02-19 Grasselli Chemical Co Phosphoric acid metal cleaning and rust preventing solution
BE410539A (en) 1935-12-27
US2558445A (en) 1947-09-06 1951-06-26 Union Switch & Signal Co Traffic controlling apparatus
US2806000A (en) 1956-06-21 1957-09-10 Du Pont Cleaning stainless steel
US2975029A (en) 1957-12-30 1961-03-14 Bethlehem Steel Corp Waste pickle liquor recovery process
US3438799A (en) 1965-06-22 1969-04-15 Chem Eng Ltd Method for the surface treatment of metal articles
DE2461612C3 (en) * 1974-12-27 1981-08-20 Hoechst Ag, 6000 Frankfurt Rust-dissolving cleaning agents and a process for their production
EP0261255B1 (en) * 1986-09-20 1989-03-15 KGB Kernkraftwerke Gundremmingen Betriebsgesellschaft mbH Process for working up an aqueous phosphoric-acid solution
JPH01215991A (en) * 1988-02-25 1989-08-29 Sekisui Plastics Co Ltd Additive for pickling acid solution
CN1033786A (en) * 1988-11-14 1989-07-12 洪都钢厂 Utilize iron and steel pickling waste liquid to produce the processing method of iron oxide yellow
CN1063908A (en) * 1991-02-04 1992-08-26 中国长江动力公司(集团)武汉汽轮发电机厂 Surface treating liquid for rust removal and corrosion prevention of iron and steel products
JP3052213B2 (en) 1991-02-18 2000-06-12 タイホー工業株式会社 Rust remover for stainless steel surface
CN100338262C (en) * 2005-03-04 2007-09-19 河北工业大学 Compound cleaning method for hot dip steel member
CN1974853A (en) * 2006-10-25 2007-06-06 卢玉柱 Process of reusing waste iron and steel pickling hydrochloric acid solution and recovering nanometer iron powder and CO
CN102021591B (en) 2010-12-18 2012-07-04 江苏德美科技有限公司 Acid degreasing agent for steel surface and preparation method thereof
CN103014737A (en) * 2011-09-22 2013-04-03 河南红日锂能源科技有限公司 Cold-rolled steel pickling waste acid treatment method
CN102925883B (en) 2012-11-29 2014-11-05 郭衡怀 Multifunctional metal surface treatment solution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255407A (en) * 1978-12-07 1981-03-10 Oy W. Rosenlaw Ab Method for the regeneration of pickling acids
WO2001049901A1 (en) * 2000-01-05 2001-07-12 United States Filter Corporation Regenerating spent pickling liquor
WO2009075710A1 (en) * 2007-12-11 2009-06-18 Macdermid, Incorporated Acid recycle process with iron removal
US8603420B2 (en) * 2009-09-10 2013-12-10 Green Future Ltd. Galvanic waste sludge treatment and manufacturing of nano-sized iron oxides

Also Published As

Publication number Publication date
EP3134559A1 (en) 2017-03-01
US9752238B2 (en) 2017-09-05
CN106460137A (en) 2017-02-22
SG11201608472YA (en) 2016-11-29
CN106460137B (en) 2019-08-16
EA201692121A1 (en) 2017-06-30
WO2015162604A1 (en) 2015-10-29
US20170037520A1 (en) 2017-02-09
AU2015249410B2 (en) 2017-02-16
EP3134559A4 (en) 2018-04-04
AU2015249410A1 (en) 2016-12-08
IL248247A (en) 2017-08-31

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Designated state(s): AM AZ BY KZ KG TJ TM